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Math Toolkit review
by Vladimir Valenta 03 May '07

03 May '07

I realize that the math toolkit library review ended on 4/27 but better late than never. I have been experimenting with it for the last two weeks. In particular, I have tried to use several distributions (normal, student t, uniform etc), some special functions, and root finders. In all my tests the math library performed as expected, it was fast and reasonably well documented. Note that my testing did not include all functionality in the library. One suggestion - the "normal_distribution" which is implemented by the math library puts it in the boost::math namespace. The "normal_distribution" random generator which is implemented by the random library puts it in the boost namespace. In order to be consistent (and avoid conflicts) the random library should put its classes in the boost::random namespace. All in all, I find the library very useful and I already started using it in my code. Vladimir Valenta

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Boost inspection notification (2007-05-03/RC_1_34_0) *LC*
by Rene Rivera 03 May '07

03 May '07

Boost Inspection Report Run Date: 16:05:50 UTC, Thursday 03 May 2007 An inspection program <http://www.boost.org/tools/inspect/index.html> checks each file in the current Boost CVS for various problems, generating this as output. Problems detected include tabs in files, missing copyrights, broken URL's, and similar misdemeanors. Totals: 11453 files scanned 908 directories scanned (including root) 1051 problems reported Problem counts: 653 files missing Boost license info or having wrong reference text 398 files missing copyright notice Summary: any (1) archive (1) build (68) concept_check (22) conversion (5) doc (1) filesystem (2) function (1) graph (1) inspect (1) integer (9) lambda (10) libs (6) logic (2) math (1) more (13) mpl (417) multi_array (13) numeric (188) optional (1) people (4) program_options (35) property_map (15) ptr_container (8) python (6) rational (5) regex (4) regression (118) release (2) serialization (16) signals (2) smart_ptr (8) test (3) timer (1) tr1 (2) tuple (5) utility (12) variant (42) Details: *L* missing Boost license info, or wrong reference text *C* missing copyright notice |any| libs/any/doc/ any.xml: *L* |archive| boost/archive/detail/ utf8_codecvt_facet.hpp: *L* |build| tools/build/v2/build/ build-request.jam: *L* modifiers.jam: *L* tools/build/v2/doc/ Jamfile.v2: *C* *L* 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*C* *L* tools/regression/xsl_reports/xsl/v2/ expected_to_1_33_format.xsl: *C* *L* |release| tools/release/ utils.py: *C* *L* |serialization| libs/serialization/doc/ style.css: *C* *L* libs/serialization/example/ demo_output.txt: *C* *L* demo_save.xml: *C* *L* demofile.txt: *C* *L* libs/serialization/test/ run_archive_test.bat: *C* *L* runtest.bat: *C* *L* runtest.sh: *C* *L* libs/serialization/vc7ide/ readme.txt: *C* *L* |signals| libs/signals/doc/ tutorial.xml: *C* *L* |smart_ptr| libs/smart_ptr/ compatibility.htm: *L* scoped_array.htm: *L* scoped_ptr.htm: *L* shared_array.htm: *L* shared_ptr.htm: *L* smart_ptr.htm: *L* smarttests.htm: *L* weak_ptr.htm: *L* |test| boost/test/utils/runtime/cla/detail/ argument_value_usage.hpp: *L* libs/test/test/auto-link-test/ run_bjam.bat: *C* *L* |timer| libs/timer/ timer.htm: *L* |tr1| boost/tr1/ tuple.hpp: *C* *L* |tuple| libs/tuple/doc/ design_decisions_rationale.html: *L* tuple_advanced_interface.html: *L* tuple_users_guide.html: *L* libs/tuple/test/ README: *C* *L* |utility| boost/ shared_container_iterator.hpp: *L* libs/utility/ OptionalPointee.html: *L* call_traits.htm: *L* compressed_pair.htm: *L* enable_if.html: *L* libs/utility/test/ Jamfile.v2: *L* libs/utility/ utility.htm: *L* value_init.htm: *L* value_init_test.cpp: *C* value_init_test_fail1.cpp: *C* value_init_test_fail2.cpp: *C* value_init_test_fail3.cpp: *C* |variant| libs/variant/doc/ Jamfile.v2: *C* *L* biblio.xml: *C* *L* design.xml: *C* *L* introduction.xml: *C* *L* misc.xml: *C* *L* libs/variant/doc/reference/ apply_visitor.xml: *C* *L* bad_visit.xml: *C* *L* concepts.xml: *C* *L* get.xml: *C* *L* recursive_variant.xml: *C* *L* recursive_wrapper.xml: *C* *L* reference.xml: *C* *L* static_visitor.xml: *C* *L* variant.xml: *C* *L* variant_fwd.xml: *C* *L* visitor_ptr.xml: *C* *L* libs/variant/doc/tutorial/ advanced.xml: *C* *L* basic.xml: *C* *L* tutorial.xml: *C* *L* libs/variant/doc/ variant.xml: *L* libs/variant/ index.html: *C* *L* libs/variant/test/ Jamfile.v2: *L*

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Boost inspection notification (2007-05-03/RC_1_34_0) *X*
by Rene Rivera 03 May '07

03 May '07

Boost Inspection Report Run Date: 16:05:44 UTC, Thursday 03 May 2007 An inspection program <http://www.boost.org/tools/inspect/index.html> checks each file in the current Boost CVS for various problems, generating this as output. Problems detected include tabs in files, missing copyrights, broken URL's, and similar misdemeanors. Totals: 11453 files scanned 908 directories scanned (including root) 209 problems reported Problem counts: 0 files with invalid line endings 0 bookmarks with invalid characters 3 invalid urls 117 broken links 22 unlinked files 22 file/directory names issues 1 files with tabs 9 violations of the Boost min/max guidelines 35 usages of unnamed namespaces in headers (including .ipp files) Summary: archive (3) bind (1) boost-root (1) build (1) date_time (1) doc (2) filesystem (37) graph (2) iostreams (3) lambda (3) math (8) more (4) mpl (4) multi_array (2) ptr_container (1) python (20) regex (1) regression (32) serialization (1) test (81) type_traits (1) Details: *R* invalid (cr only) line-ending *A* invalid bookmarks, invalid urls, broken links, unlinked files *N* file/directory names issues *T* tabs in file *M* uses of min or max that have not been protected from the min/max macros, or unallowed #undef-s *U* unnamed namespace in header |archive| boost/archive/basic_streambuf_locale_saver.hpp: *N* name exceeds 31 characters boost/archive/impl/xml_wiarchive_impl.ipp: *U* unnamed namespace at line 53 boost/archive/iterators/remove_whitespace.hpp: *U* unnamed namespace at line 57 |bind| boost/bind/placeholders.hpp: *U* unnamed namespace at line 25 |boost-root| index.htm: *A* broken link: doc/hmtl/date_time/details.html#changes |build| tools/build/v2/test/test_system.html: *A* unlinked file |date_time| libs/date_time/xmldoc/date_time_docs_howto.html: *A* unlinked file |doc| doc/html/boost_math/inverse_complex.html: *A* unlinked file doc/html/jam.html: *A* unlinked file |filesystem| libs/filesystem/doc/do-list.htm: *A* invalid URL (hardwired file): file://?/ *A* invalid URL (hardwired file): file://?/UNC/ libs/filesystem/doc/i18n.html: *A* broken link: convenience.htm#basic_recursive_directory_iterator *A* broken link: exception.htm *A* broken link: operations.htm *A* broken link: operations.htm#Do-the-right-thing *A* broken link: operations.htm#is_directory *A* broken link: operations.htm#is_file *A* broken link: operations.htm#status libs/filesystem/doc/index.htm: *A* broken link: ../build/Jamfile *A* broken link: convenience.htm *A* broken link: fstream.htm *A* broken link: operations.htm#create_directory *A* broken link: operations.htm#create_hard_link *A* broken link: operations.htm#current_path *A* broken link: operations.htm#directory_iterator *A* broken link: operations.htm#equivalent *A* broken link: operations.htm#file_size *A* broken link: operations.htm#initial_path *A* broken link: operations.htm#is_file *A* broken link: operations.htm#is_symlink *A* broken link: operations.htm#status *A* broken link: operations.htm#symlink_status *A* broken link: path.htm#Canonical *A* broken link: path.htm#Grammar *A* broken link: path.htm#Normalized *A* broken link: path.htm#default_name_check *A* broken link: path.htm#name_check_mechanism *A* broken link: path.htm#normalize *A* broken link: path.htm#operator_eq *A* broken link: path.htm#synopsis libs/filesystem/doc/portability_guide.htm: *A* broken link: path.htm#name_check_typedef libs/filesystem/doc/tr2_proposal.html: *A* invalid URL (hardwired file): file:///C|/boost/site/libs/filesystem/doc/operations.htm#complete_note |graph| libs/graph/example/file_dependencies.cpp: *M* violation of Boost min/max guidelines on line 139 libs/graph/test/serialize.cpp: *T* |iostreams| libs/iostreams/doc/acknowledgments.html: *A* unlinked file libs/iostreams/doc/concepts/multi-character.html: *A* unlinked file libs/iostreams/doc/installation.html: *A* broken link: ../../../tools/build/v1/build_system.htm |lambda| boost/lambda/core.hpp: *U* unnamed namespace at line 62 boost/lambda/detail/lambda_functors.hpp: *U* unnamed namespace at line 25 boost/lambda/exceptions.hpp: *U* unnamed namespace at line 24 |math| libs/math/test/common_factor_test.cpp: *M* violation of Boost min/max guidelines on line 146 *M* violation of Boost min/max guidelines on line 147 *M* violation of Boost min/max guidelines on line 193 *M* violation of Boost min/max guidelines on line 194 |more| more/cvs.html: *A* unlinked file more/getting_started/unix-variants.html: *A* broken link: ../../doc/html/thread/build.html#thread.build more/getting_started/windows.html: *A* broken link: ../../doc/html/thread/build.html#thread.build more/separate_compilation.html: *A* broken link: ../libs/config/test/link/test/Jamfile.v2 |mpl| boost/mpl/alias.hpp: *U* unnamed namespace at line 17 libs/mpl/doc/refmanual/for-each.html: *A* broken link: ./value-initialized.html |multi_array| boost/multi_array/base.hpp: *U* unnamed namespace at line 69 libs/multi_array/test/generative_tests.hpp: *U* unnamed namespace at line 57 |ptr_container| libs/ptr_container/doc/tutorial_example.html: *A* unlinked file |python| libs/python/doc/building.html: *A* broken link: ../example/quickstart/Jamroot *A* broken link: ../example/quickstart/boost-build.jam *A* broken link: ../example/quickstart/extending.cpp *A* broken link: ../index.htm libs/python/doc/tutorial/doc/html/python/hello.html: *A* broken link: ../../../../../example/tutorial/Jamrules libs/python/doc/tutorial/index.html: *A* broken link: ../../../LICENSE_1_0.txt libs/python/doc/v2/May2002.html: *A* broken link: ../../../../tools/build/v1/build_system.htm *A* broken link: ../../../../tools/build/v1/gen_aix_import_file.py libs/python/doc/v2/faq.html: *A* broken link: ../../../../tools/build/v1/build_system.htm |regex| libs/regex/performance/input.html: *A* unlinked file |regression| regression/.htaccess: *N* leading character of ".htaccess" is not alphabetic tools/regression/test/test-cases/incremental/bjam.log.1: *N* name contains more than one dot character ('.') tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/compile-fail.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/completed.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/expected/compile-fail.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/expected/completed.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/expected/lib.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/expected/misfire.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/expected/no-run.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/expected/run_pyd.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/expected/test-case.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/test-case.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/test-driver.xsl: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_re_match/expected/test_re_match.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_test_case_status/explicit-failures-markup.xml.test: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ *N* name contains more than one dot character ('.') *N* name exceeds 31 characters tools/regression/xsl_reports/test/test-components/test_test_structure/explicit-failures-markup.xml.test: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ *N* name contains more than one dot character ('.') *N* name exceeds 31 characters tools/regression/xsl_reports/xsl/html/issues_legend.html: *A* unlinked file tools/regression/xsl_reports/xsl/html/library_developer_legend.html: *A* unlinked file tools/regression/xsl_reports/xsl/html/library_user_legend.html: *A* unlinked file tools/regression/xsl_reports/xsl/html/make_tinyurl.html: *A* unlinked file tools/regression/xsl_reports/xsl/html/summary_developer_legend.html: *A* unlinked file tools/regression/xsl_reports/xsl/html/summary_user_legend.html: *A* unlinked file tools/regression/xsl_reports/xsl/v2/html/issues_legend.html: *A* unlinked file tools/regression/xsl_reports/xsl/v2/html/library_developer_legend.html: *A* unlinked file tools/regression/xsl_reports/xsl/v2/html/library_user_legend.html: *A* unlinked file tools/regression/xsl_reports/xsl/v2/html/make_tinyurl.html: *A* unlinked file tools/regression/xsl_reports/xsl/v2/html/summary_developer_legend.html: *A* unlinked file tools/regression/xsl_reports/xsl/v2/html/summary_user_legend.html: *A* unlinked file |serialization| libs/serialization/src/basic_xml_grammar.ipp: *U* unnamed namespace at line 43 |test| boost/test/floating_point_comparison.hpp: *U* unnamed namespace at line 206 *U* unnamed namespace at line 228 boost/test/impl/cpp_main.ipp: *U* unnamed namespace at line 42 boost/test/impl/exception_safety.ipp: *U* unnamed namespace at line 400 boost/test/impl/framework.ipp: *U* unnamed namespace at line 199 boost/test/impl/plain_report_formatter.ipp: *U* unnamed namespace at line 45 boost/test/impl/progress_monitor.ipp: *U* unnamed namespace at line 38 boost/test/impl/results_collector.ipp: *U* unnamed namespace at line 106 boost/test/impl/results_reporter.ipp: *U* unnamed namespace at line 48 boost/test/impl/unit_test_log.ipp: *U* unnamed namespace at line 79 boost/test/impl/unit_test_monitor.ipp: *U* unnamed namespace at line 35 boost/test/impl/unit_test_parameters.ipp: *U* unnamed namespace at line 50 boost/test/results_collector.hpp: *U* unnamed namespace at line 40 boost/test/test_tools.hpp: *U* unnamed namespace at line 262 boost/test/utils/iterator/token_iterator.hpp: *U* unnamed namespace at line 166 boost/test/utils/named_params.hpp: *U* unnamed namespace at line 216 boost/test/utils/runtime/cla/dual_name_parameter.ipp: *U* unnamed namespace at line 43 boost/test/utils/runtime/cla/modifier.hpp: *U* unnamed namespace at line 34 boost/test/utils/runtime/env/modifier.hpp: *U* unnamed namespace at line 34 boost/test/utils/runtime/file/config_file.hpp: *U* unnamed namespace at line 169 *U* unnamed namespace at line 64 *U* unnamed namespace at line 74 boost/test/utils/runtime/file/config_file_iterator.hpp: *U* unnamed namespace at line 68 boost/test/utils/trivial_singleton.hpp: *U* unnamed namespace at line 52 *U* unnamed namespace at line 61 libs/test/build/msvc71_proj/config_file_iterator_test.vcproj: *N* name exceeds 31 characters libs/test/doc/components/prg_exec_monitor/compilation.html: *A* broken link: ../../../build/Jamfile libs/test/doc/components/prg_exec_monitor/index.html: *A* broken link: ../../../../../boost/test/cpp_main.hpp libs/test/doc/components/test_tools/index.html: *A* broken link: ../../tests/boost_check_equal_str.html libs/test/doc/components/test_tools/reference/BOOST_CHECK_CLOSE.html: *A* broken link: BOOST_CHECK_CLOSE_FRACTION.html libs/test/doc/components/test_tools/reference/BOOST_CHECK_MESSAGE.html: *A* broken link: BOOST_MESSAGE.html libs/test/doc/components/test_tools/reference/BOOST_CHECK_SMALL.html: *A* broken link: BOOST_CHECK_CLOSE_FRACTION.html libs/test/doc/components/test_tools/reference/tools_list.html: *A* broken link: ../../btl1.gif *A* broken link: BOOST_CHECK_CLOSE_FRACTION.html libs/test/doc/components/utf/compilation.html: *A* broken link: ../../../build/Jamfile libs/test/doc/components/utf/components/index.html: *A* broken link: ../../btl1.gif libs/test/doc/components/utf/components/test_case/abstract_interface.html: *A* broken link: ../../../btl1.gif libs/test/doc/components/utf/components/test_case/auto_register_facility.html: *A* broken link: ../../../btl1.gif libs/test/doc/components/utf/components/test_case/boost_function_tc.html: *A* broken link: 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1 0

multi_array: num_dimensions() not a static member
by John Reid 03 May '07

03 May '07

Hi, Shouldn't num_dimensions() be a static member of multi_array as it only depends on the size_t template parameter? I am trying to write some template code that takes a type that models the multi_array interface however without an instance of this type I cannot determine the number of dimensions of the array. How should I do this or should a static method be added to the multi_array type? There is a line BOOST_STATIC_CONSTANT(std::size_t, dimensionality = NumDims); in the code but this is undocumented. John.

1 0

[1.34.0 beta] [test] docs/announcement
by Kirill Lapshin 03 May '07

03 May '07

Hi all, I've took 1.34.0 beta for a spin, and so far can report a success -- largeish project compiles fine, passes all tests with virtually no changes to the code. My only concern at the moment is boost.test library. It is not even listed as updated, yet public interface has changed. I am talking about BOOST_AUTO_UNIT_TEST to BOOST_AUTO_TEST_CASE rename. It would be nice to have some information on what have changed since last version together with some pointers on how to migrate code from older versions. To make matters worse it looks like all links to examples are broken in boost.test documentation, and some examples are just MIA (e.g. auto_unit_test_test.cpp, the place where I naturally tried to find what the new syntax is). Regards, Kirill.

4 3

[regex] specify parenthesis
by Lorenzo Bettini 03 May '07

03 May '07

Hi is there a way to specify open and closed parenthesis with a regular expression syntax? For instance, if I'd want to specify a single regular expression that matches both (foo) and [foo] and {foo}? thanks in advance Lorenzo -- Lorenzo Bettini, PhD in Computer Science, DSI, Univ. di Firenze ICQ# lbetto, 16080134 (GNU/Linux User # 158233) HOME: http://www.lorenzobettini.it MUSIC: http://www.purplesucker.com BLOGS: http://tronprog.blogspot.com http://longlivemusic.blogspot.com http://www.gnu.org/software/src-highlite http://www.gnu.org/software/gengetopt http://www.gnu.org/software/gengen http://doublecpp.sourceforge.net

5 14

iostreams and binary memorystreams
by Edwin Vane 03 May '07

03 May '07

Hi, I'd like to create an iostream that writes data in binary format to a pre-allocated block of memory. I'm already using array_sink to handle the 'write to a pre-allocated block of memory' part: char* my_data = new char[1024]; io::stream_buffer<io::array_sink> buf(my_data,1024); std::ostream os(&buf); int i = 15; float f = 5.1345; os << i; os << f; os << "Hello World!"; os << 'c'; However, all the data written to my_data is in text format (i.e. 15 is encoded in 2 bytes 0x31 0x35 instead of 4 (assuming 32-bit integers)). What I'd like is something like file_sink where you specify the mode as binary. The 'mode' seems to be a Device-level decision (as it is with basic_file_sink) so I'm guessing array_sink is not what I need afterall. Does something exist for writing binary data to a block of memory? -- Edwin Vane RapidMind, Inc.

2 1

[Fwd: [1.34.0 beta] GCC toolset version/flavor detection patch. (attn Thomas Witt)]
by Thomas Witt 03 May '07

03 May '07

Volodya, can you have a look at this. I am inclined to put it in RC_1_34_0 if you think it's OK. Thomas -------- Original Message -------- Subject: [1.34.0 beta] GCC toolset version/flavor detection patch. (attn Thomas Witt) Date: Wed, 02 May 2007 22:25:39 -0500 From: Rene Rivera <grafikrobot(a)gmail.com> Reply-To: boost(a)lists.boost.org Organization: Redshift Software, Inc. To: boost(a)lists.boost.org Newsgroups: gmane.comp.lib.boost.devel The problem: Boost.Build currently uses "gcc --version" and some parsing of that to autodetect the version and flavor (only mingw is relevant so far). But the output of that command is extremely variable. A user tried doing a "bjam --toolset=gcc install" with a more mainline MinGW 4.1.2 build and got errors. I tried the same, and although I didn't get errors, I got both bad version number and strange directory names. The solution: Change Boost.Build to use "gcc -dumpversion" and "gcc -dumpmachine". Before I was reticent to make such a change because according to the public GCC docs it's only there on versions 3.1 onward. But Antonio Fiuman, from the #boost channel, found it was implemented as far back as version 2.8.1. So I'm suggesting we make the following change to fix the above problem: Index: tools/build/v2/tools/gcc.jam =================================================================== RCS file: /cvsroot/boost/boost/tools/build/v2/tools/gcc.jam,v retrieving revision 1.89 diff -u -r1.89 gcc.jam --- tools/build/v2/tools/gcc.jam 3 Apr 2007 17:10:53 -0000 1.89 +++ tools/build/v2/tools/gcc.jam 3 May 2007 02:48:10 -0000 @@ -81,10 +81,11 @@ # The 'command' variable can have multiple elements. When calling # the SHELL builtin we need a single string. local command-string = $(command:J=" ") ; - local command-info = [ MATCH "^[^ ]+[ ]+[^ ]+[ ]+([^ ]+)[^(]*[(]?([^)]*)" - : [ SHELL "$(command-string) --version" ] ] ; - version ?= $(command-info[1]) ; - switch $(command-info[2]:L) + local machine = [ MATCH "^([^ ]+)" + : [ SHELL "$(command-string) -dumpmachine" ] ] ; + version ?= [ MATCH "^([0-9.]+)" + : [ SHELL "$(command-string) -dumpversion" ] ] ; + switch $(machine:L) { case *mingw* : flavor ?= mingw ; } =================================================================== NOTE: Even though this problem only showed up on the MinGW GCC it is likely not confined to MinGW, nor Windows. The patch is tested with MinGW 3.4.5, MinGW 4.1.2, and GCC 4.1.2 on Ubuntu Linux. OK to commit, to HEAD and RC_1_34_0? -- -- Grafik - Don't Assume Anything -- Redshift Software, Inc. - http://redshift-software.com -- rrivera/acm.org - grafik/redshift-software.com -- 102708583/icq - grafikrobot/aim - grafikrobot/yahoo _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost -- Thomas Witt witt(a)acm.org

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[1.34.0 beta] GCC toolset version/flavor detection patch. (attn Thomas Witt)
by Rene Rivera 03 May '07

03 May '07

The problem: Boost.Build currently uses "gcc --version" and some parsing of that to autodetect the version and flavor (only mingw is relevant so far). But the output of that command is extremely variable. A user tried doing a "bjam --toolset=gcc install" with a more mainline MinGW 4.1.2 build and got errors. I tried the same, and although I didn't get errors, I got both bad version number and strange directory names. The solution: Change Boost.Build to use "gcc -dumpversion" and "gcc -dumpmachine". Before I was reticent to make such a change because according to the public GCC docs it's only there on versions 3.1 onward. But Antonio Fiuman, from the #boost channel, found it was implemented as far back as version 2.8.1. So I'm suggesting we make the following change to fix the above problem: Index: tools/build/v2/tools/gcc.jam =================================================================== RCS file: /cvsroot/boost/boost/tools/build/v2/tools/gcc.jam,v retrieving revision 1.89 diff -u -r1.89 gcc.jam --- tools/build/v2/tools/gcc.jam 3 Apr 2007 17:10:53 -0000 1.89 +++ tools/build/v2/tools/gcc.jam 3 May 2007 02:48:10 -0000 @@ -81,10 +81,11 @@ # The 'command' variable can have multiple elements. When calling # the SHELL builtin we need a single string. local command-string = $(command:J=" ") ; - local command-info = [ MATCH "^[^ ]+[ ]+[^ ]+[ ]+([^ ]+)[^(]*[(]?([^)]*)" - : [ SHELL "$(command-string) --version" ] ] ; - version ?= $(command-info[1]) ; - switch $(command-info[2]:L) + local machine = [ MATCH "^([^ ]+)" + : [ SHELL "$(command-string) -dumpmachine" ] ] ; + version ?= [ MATCH "^([0-9.]+)" + : [ SHELL "$(command-string) -dumpversion" ] ] ; + switch $(machine:L) { case *mingw* : flavor ?= mingw ; } =================================================================== NOTE: Even though this problem only showed up on the MinGW GCC it is likely not confined to MinGW, nor Windows. The patch is tested with MinGW 3.4.5, MinGW 4.1.2, and GCC 4.1.2 on Ubuntu Linux. OK to commit, to HEAD and RC_1_34_0? -- -- Grafik - Don't Assume Anything -- Redshift Software, Inc. - http://redshift-software.com -- rrivera/acm.org - grafik/redshift-software.com -- 102708583/icq - grafikrobot/aim - grafikrobot/yahoo

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Reminder: Sandbox CVS going DOWN tomorrow
by Doug Gregor 03 May '07

03 May '07

In about 13 hours, the Boost Sandbox CVS will be going offline for the conversion to Subversion. If you have any outstanding changes, please commit them to the sandbox CVS *immediately*. - Doug

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